Pillow-block



D. A. CAMERON.

PILLOW BLOCK.

Patented Dec. 4, 1888v ]n1/cn/or:

Janie] :1. Cameron.

H .I a; i w

(No Model.)

UNITED STATES PATENT OFFICE.

DANIEL A. CAMERON, OF PORT HURON, MICHIGAN.

PILLOW-BLOCK.

SPECIFICATION forming part of Letters Patent No. 394,056, dated December4, 1888.

Application filed February 23, 1888. Serial No. 265,004. (No model.)

T 0 a whom it may concern.-

ie it known that I, DANIEL A. CAMERON,

a citizen of the United States, residingat Iort l as shown, for thisconstruction prevents dislIuron, in the county of St. (lair and State ofMichigan, have in vented certain new and usei I tions, respectively, foradmitting a cooling f'ul Improvements in Pillow-Blocks, of which thefollowing is a specification, reference be ing had therein to theacmnnpauying drawings.

This invention relates to certain new and useful improvements in pillowblocks or boxes; and the invention consists in the arrangement andoperation of the devices by means of which the trouble, annoyance, anddanger from hot boxes are almost entirely overcome by means of acirculation of a cooling medium established through the pillow blocks orboxes, all as more fully hereinafter described.

In. the drawings which accompany this specification, Figure l is avertical cross-section of a journal-box (nnbodying my invention. Fig. 2is a plan of one-half of the pillow-block, Fig. 33 is a detached sectionof the compressible gasket, and Fig. i is a vertical cross-sectiou of apillow-Mock.

A represents the upper and lower parts of a pillow-block, which may beof any suitable construction, except as hereinafter described.

B is an annular chamber cast in each part of the pillow-block,preferably in the form of a ring, concentric with the center of the bearing, and in close proximity to the inner walls thereof.

I) is a gasket made of any kind of soft metahor preferably of rubber.'lhis gasket is provided with a central aperture, E, adapted toestablish connection between the upper and lower halves of. the chamberB in the journal-bearin g, and at the same time to fit between the upperand lower halves of the journal-bearings and permit of adjusting thebearing in the ordinary manner by means of the bolts F as the brasses or'la bbitt wears away. This gasket is preferably seated in sockets, orotherwise prevented from accidental displacement, and is intended toform a tight joint between the upper and lower halves of the box orbearing.

I deem it important that the gasket be seated in sockets, I

placement of the gasket and kecps the aperture in the gasket in linewith the annular chamber.

G and II are ingoing and outgoing connecmedium'such as cold water-intothe chamber B, and pern'litting it to circulate through by causing it toflow oil through the pipe H. It is immaterial, however, how the pipesare connected to thc pillow-block, as thisdepcnds upon the contingenciesof construction; but 1 preferably secure the in and out going pipes insuch relation to each other as to cause a circulation at the lowestpoint to permit the water or other cooling medium in the journalbox tobe drained off to prevent freezing.

As there are a large number of pillowblocks or journal-l)earings in anyplant of machinery, I intend to connect all the boxes to be thus guardedagainstbecoming hot into a system which may be then connected with atank or any other source of supplyif nothing better, even with theboiler or feed water heater, as it will be seen that the heat of boilingwater or steam is suliiciently low to form a ctmling medium to preventthe boxes from becoming overheated, and thereby a void the danger orliability of setting lire to a valit able plant. Instead of using wateras the cooling medium, steam, air, or other fluid may be used. I have inview also to apply my invention to the boxes of vehicles of any kindsuch as railway-cars, which are cspeciallyliable to sutter from hotboxesin which case a suitable supply of cooling medium has to beprovided from a receptacle or from the tender or locomotive of thetrain.

the tWo parts of the block seated in said In testimony whereof I affixmy signature, sockets and providecLWit-h aperture E, coinciin presenceof two Witn esses, this 9th day of dent with the annular chamberstherein, the February, 1888.

bolts F, adjustably securing the two parts 'to- V DANIEL A. CAMERON. 5gethei', and the inlet and outlet connections \Vitnesses:

communicating with the annular chamber P.1I. IIULBERT, substantially asand for the purpose specified. JOHN SCHUMAN.

